Herschel itself is continuing its processing flow at Kourou ahead of its integration with the booster:

The Herschel spacecraft in the S1B clean room at Europe’s launch site (CSG) in Kourou, French Guiana. A protective foil is draped over the satellite to protect Herschel’s giant primary mirror from contamination.

And you can see Herschel’s fellow traveler to space, Planck in the corner of the clean room……